This product provides a blocking facility for landline phones stopping telemarketers, robocallers, survey calls... all kinds of annoying sales calls can be stopped!
- 1,200 Number Capacity - Line-powered - block calls using cordless extension handsets by pressing #2
- Block Area Codes, International, Out of Area, Private, Unknown
- Pre-programmed with 200 rogue calling numbers
*Caller ID service is required for this product to work*